Adhesive tape dispenser

ABSTRACT

An adhesive tape dispenser includes a main body provided with a flattening sheet at an upper side of a first end and the flattening sheet is connected with a blade. The main body is provided with a Velcro at an underside of the first end and pivotally mounted with a first roller corresponding with the Velcro. In the process of release of adhesive tape, the adhesive tape enables the first roller and the Velcro to rub each other and generates static electricity and thus, when the adhesive tape is not used, the adhesive tape will be absorbed to the first roller and impossible to roll up back to the adhesive tape roll.

BACKGROUND OF THE INVENTION 1. Field of the Invention

This invention relates to an adhesive tape dispenser, particularly toone convenient in release of the adhesive tape.

2. Description of the Prior Art

A conventional adhesive tape dispenser includes a main body formed witha first end and a second end. The main body has the first end pivotallyprovided with a flattening sheet, having a roller positioned under theflattening sheet and a blade inserted between the flattening sheet andthe roller. The main body has the second end provided with a handle andthe interior mounted with a fixed shaft between the first end and secondend. In using, a tape roll is first fitted on the fixed shaft and thetape of the tape roll is pulled out to pass round the roller and thencontinues to be pulled until the tape reaches to the flattening sheet.At this time, a user can hold the handle to release the tape for useand, after the tape is flattened out by the flattening sheet and adheresto the article to be pasted, the tape is cut off by the blade. However,when the conventional adhesive tape dispenser is not in use, the tailend of the tape is apt to roll up back and stick to the outer surface ofthe tape roll so it is hard for a user to find the tail end of the tapewhen the tape is to be used, thus resulting in convenient in use of theconventional adhesive tape disposer. Therefore, having observed thedrawback mentioned above, the inventor of this invention thinks that theconventional adhesive tape dispenser is necessary to be improved andhence devises this invention.

SUMMARY OF THE INVENTION

The objective of this invention is to offer an adhesive tape dispenserthat is safe and convenient in use.

The adhesive tape dispenser in the present invention includes a mainbody having a first end provided with a tape release portion receivedtherein with an electrostatic generating element. An electrostaticbearing element is disposed in the tape release portion, able to rubtogether with the electrostatic generating element. A tape holder ispositioned in the main body and provided with a reel, and a blade ismounted in the main body.

The tape holder of the adhesive tape dispenser of this invention isinstalled thereon with a tape roll able to release tape. In the processof release of tape, the tape enables the electrostatic bearing elementand the electrostatic generating element to rub each other and generatestatic electricity to be stored by the electrostatic bearing element.Thus, the tape can be absorbed by the electrostatic bearing element andimpossible to roll up back to the tape roll, convenient in use.

BRIEF DESCRIPTION OF DRAWINGS

This invention will be better understood by referring to theaccompanying drawings, wherein:

FIG. 1 is a perspective view of an adhesive tape dispenser in thepresent invention;

FIG. 2 is an exploded perspective view of the adhesive tape dispenser inthe present invention;

FIG. 3 is a cross-sectional view of the adhesive tape dispenser in thepresent invention, showing installation of a tape roll;

FIG. 4 is a cross-sectional view of the line 4-4 in FIG. 3;

FIG. 5 is a schematic view of the adhesive tape dispenser in use in thepresent invention, showing that the tape is flattened out and cut off;

FIG. 6 is a schematic view of the adhesive tape dispenser in the presentinvention, showing that the tape is absorbed onto a first roller; and

FIG. 7 is a schematic view of the adhesive tape dispenser in use in thepresent invention, showing replacement of a tape roll.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

A preferred embodiment of an adhesive tape dispenser 100 in the presentinvention, as shown in FIGS. 1-4, includes a main body 10, a holdingportion 20, a tape holder 30, an electrostatic bearing element 40, asecond roller 50, a flattening sheet 60, a blade box 70 and a blade 80as main components combined together.

The main body 10 is formed with a first end 11 and a second end 12. Thefirst end 11 of the main body 10 has an underside provided with a taperelease portion 13, which is a first accommodating groove, and anelectrostatic generating element 14 is fixed at the groove wall of thefirst accommodating groove. The main body 10 consists of a first cover15 and a second cover 16 provided oppositely. In this invention, thefirst end 11 of the main body 10 has an upper side formed with a secondaccommodating groove 17, which has two side walls respectively andtransversely disposed with a first position-limiting block 171, with afirst position-limiting groove 172 formed between the firstposition-limiting blocks 171 and the bottom of the second accommodatinggroove 17. Further, the first cover 15 is provided with a long arcuatesecond position-limiting block 151 facing the second cover 16 at anintermediate position of the first end 11 and the second end 12, and thesecond position-limiting block 151 is formed with a secondposition-limiting groove 152 at a location facing the first end 11 andhas a positioning rod 18 inserted through one end adjacent to thetopside of the main body 10. Furthermore, the first cover 15 has thesecond end 12 provided with at least one round rod 153 facing the secondcover 16 and respectively bored with a first fixing hole 154, and thesecond cover 16 has the second end 12 provided with a second round rod161 corresponding with the first round rod 153 and respectively boredwith a second fixing hole 162 corresponding to the first fixing hole154. In addition, the external diameter of the second round rod 161 islarger than that of the first round rod 153, and the second round rod161 is formed with a recessed groove 163 corresponding to the firstround rod 153 to enable the second round rod 161 to be fitted with thefirst round rod 153.

The holding portion 20 is secured at the second end 12 of the main body10 and positioned between the first cover 15 and the second cover 16.The holding portion 20 consists of a grip 21, which is hollow and whichis bored with a third insert hole 211 corresponding to the first roundrod 153 at one side adjacent to the first cover 15 for the first roundrod 153 to be inserted therein. The grip 21 is further bored with afourth insert hole 212 corresponding to the second round rod 161 at oneside adjacent to the second cover 16 for the second round rod 161 to beinserted therein. A screw member 300 is inserted through both the fourthinsert hole 212 and the third insert hole 211 and screwed with thefixing hole 154 of the first round rod 153 of the first cover 15 to havethe second round rod 161 secured with the first round rod 153 for firmlycombining the holding portion 20 together with the main body 10.

The tape holder 30 received in the main body 10 is provided with a firstshaft lever 31 and a second shaft lever 32 spaced apart. The tape holder30 is further provided with a resisting block 33 at a location adjacentto the first shaft lever 31. A second elastic member 34, which is atorsional spring, is fitted around the first shaft lever 31, having afixed end 342 resisting against the main body 10 and an elastic end 342resisting against the resisting block 33, and a reel 35 is fitted on thesecond shaft lever 32. The tape holder 30 is provided with aposition-limiting sheet 36 corresponding to the second position-limitinggroove 152 at a location adjacent to the second shaft lever 32, and theposition-limiting sheet 36 is cut with a notch 361 corresponding withthe positioning rod 18 for engaging the positioning rod 18 therein andpositioning the tape holder 30.

The electrostatic bearing element 40 is pivotally fixed in the taperelease portion 13, able to rub together with the electrostaticgenerating element 14. In this invention, the electrostatic bearingelement 40 is made of thermoplastic rubber (TPR) and the electrostaticbearing element 40 is a first roller.

The second roller 50 is pivotally fixed with both the first cover 15 andthe second cover 16 and positioned between the reel 35 and theelectrostatic bearing element 40.

The flattening sheet 60 is pivotally installed at an upper side of thefirst end 11, including a sheet body 61 formed with a pivot jointportion 611, which is two pivot joint blocks respectively bored with apivot joint slot 612, and a transverse fixed shaft 62 is pivotallyconnected with the two pivot joint slots 612. The external diameter ofthe fixed shaft 62 is a little larger than the opening width of thepivot joint slot 612, and the fixed shaft 62 has two ends respectivelyfixed with two side walls of the second accommodating groove 17, and thefirst position-limiting blocks 171 are positioned between the fixedshaft 62 and the bottom of the second accommodating groove 17. Further,the fixed shaft 62 is fitted thereon with a first elastic member 63,which is a torsional spring, and the first elastic member 63 has a fixedend 631 resisting against the main body 10 and an elastic end 63 pushingagainst the sheet body 61 to enable the sheet body 61 to be turnedpivotally with the fixed shaft 62 serving as an axis. The sheet body 61is further provided with an interacting block 613 respectively at thelocations of the pivot joint blocks.

The blade box 70 is assembled at the pivot joint portion 611 of theflattening sheet 60 and in this invention, the blade box 70 is boredwith two first insert holes 71 corresponding with the two interactingblocks 613 for the interacting blocks 613 to be inserted therein.

The blade 80 fixed with the blade box 70 is bored with two second insertholes 81 corresponding to the interacting blocks 613. Thus, theinteracting blocks 613 can be orderly inserted in the first insert holes71 and the second insert holes 81, and the sheet body 61 can actuateboth the blade box 70 and the blade 80 to move via the interactingblocks 613.

Referring to FIGS. 3 and 5 as well as FIG. 2, when the adhesive tapedispenser 100 is to be used, a tape roll 200 is first fitted on the reel35 and the tape 201 of the tape roll 200 is pulled out to pass round theouter side of the second roller 50 and further pass round the outer sideof the electrostatic bearing element 40 and then, the tape 201 continuesto be pulled to reach one side of the sheet body 61. At this time, auser can grasp the holding portion 20 to have the tape 201 adhering toan article to be pasted and release the tape 201 for use. To cut off thetape 201, simply push the sheet body 61 toward the article to be pastedto make the sheet body 61 turn pivotally along the fixed shaft 62 andmeanwhile actuate the blade box 70 to move outward from the firstposition-limiting grooves 172 and stretch out the blade 80 to cut offthe tape 201. After the tape 201 is cut off, the first elastic member 63will elastically push the sheet body 61 to have both the blade case 70and the blade 80 retracted. Thus, under normal condition, the blade 80of the adhesive tape dispenser 100 is retracted in the main body 10,able to prevent the blade 80 from cutting and injuring human body forenhancing safety in use of the adhesive tape dispenser 100.

Referring to FIG. 6, since the tape release portion 13 is providedtherein with the electrostatic generating element 14; therefore, underoperating condition, the electrostatic bearing element 40 will berotated, and the tape 201 will make the electrostatic bearing element 40and the electrostatic generating element 14 rub each other and generatestatic electricity, thus enabling the tape 201 to be absorbed onto theelectrostatic bearing element 40 and impossible to be rolled up back tothe tape roll 200. Thus, this invention is convenient in use.

In this invention, the electrostatic generating element 14 is hair fiberwith a certain length and also can be a Velcro, and the electrostaticbearing element 40 is made of thermoplastic rubber (TPR), advantageousto generation and bearing of the static electricity.

Referring to FIGS. 2 and 4, when the adhesive tape dispenser 100releases the tape 201, the tape holder 30 is restrictedly positioned inthe second position-limiting groove 152 via the position-limiting sheet36, and the resisting block 33 is resisted by the second elastic member34; therefore, the tape holder 30 has pre-stress toward the secondroller 50 to enable the reel 35 and the tape roll 200 to rest againstthe second roller 50 and further fix the tape holder 30 in place andthus lowering the noise caused by release of the tape 201 and attainingeffect of noiselessness. To replace the tape roll 200, referring to FIG.7, only push the tape holder 30 upward to actuate the position-limitingsheet 36 to move upward along the second position-limiting groove 152 tohave the notch 361 engaged with the positioning rod 18. Thus, the tapeholder 30 can be fixed in position and the tape roll 200 can bereplaced.

Referring to FIG. 4, one of the special features of this invention isthat the second round rod 161 is larger than the first round rod 153 indiameter, and the second round rod 161 is provided with the recessedgroove 163 corresponding with the first round rod 153. Thus, after thefirst round rod 153 and the second round rod 161 are respectivelyinserted through the third insert hole 211 and the fourth insert hole212, the second round rod 161 can be fitted with the first round rod 153and then, the screw member 300 is inserted through the second fixinghole 162 and the first fixing hole 154 to combine the second round rod161 together with the first round rod 153 and also have the first cover15, the second cover 16 and the holding portion 20 fixed in position.Therefore, this invention is simple and convenient in assembly and easyin manufacturing. In addition, the grip 21 has its outer side fittedwith an outer shell 22, as shown in FIG. 2 and, different from the grip21, the outer shell 22 is made of an anti-skid material, able to enhanceskid resistance of the holding portion 20 and letting the holdingportion 20 present a bi-colored pattern for beautifying the holdingportion 20.

Another special feature of this invention is that the flattening sheet60 can be actuated by the fixed shaft 62 and the first elastic member 63and the interacting blocks 613 to make both the blade box 70 and theblade to stretch out or retract along the first positioning-limitinggroove 172. Since the external diameter of the fixed shaft 62 is alittle large than the opening width of the pivot joint slots 612;therefore, when the blade 80 is to be replaced, a user can quicklydisassemble the flattening sheet 60 and withdraw the blade box 70 andthe blade 80 for replacing the blade 80 with a new one, thus attainingeffects of fast stretching and retracting of the blade box 70 and quickreplacement of the blade 80.

While the preferred embodiment of the invention has been describedabove, it will be recognized and understood that various modificationsmay be made therein and the appended claims are intended to cover allsuch modifications that may fall within the spirit and scope of theinvention.

What is claimed is:
 1. An adhesive tape dispenser comprising: a mainbody, said main body formed with a tape release portion at one end, saidtape release portion provided with an electrostatic generating element;an electrostatic bearing element received in said tape release portion,said electrostatic bearing element and said electrostatic generatingelement able to rub each other; a tape holder assembled in said mainbody, said tape holder mounted with a reel; and a blade installed insaid main body; In a process of release of adhesive tape, the adhesivetape making said electrostatic bearing element and said electrostaticgenerating element rub each other and generate static electricity to bestored by said electrostatic bearing element, letting the adhesive tapeabsorbed onto said electrostatic bearing element.
 2. The adhesive tapedispenser as claimed in claim 1, wherein said tape release portion is afirst accommodating groove, said first accommodating groove having agroove wall provided with said electrostatic generating element, saidelectrostatic bearing element being a first roller, said first rollerpivotally received in said first accommodating groove.
 3. The adhesivetape dispenser as claimed in claim 1, wherein said main body has saidfirst end provided with a second accommodating groove, said secondaccommodating groove having two side walls respectively disposed with afirst position-limiting block, a first position-limiting groove formedbetween said first position-limiting blocks and a bottom of said secondaccommodating groove, said blade received in said firstposition-limiting groove, said adhesive tape dispenser further providedwith a flattening sheet, said flattening sheet containing a sheet body,said sheet body formed with a pivot joint portion, said pivot jointportion pivotally connected with a fixed shaft, said fixed shaft havingtwo ends respectively fixed at two groove walls of said secondaccommodating groove, said first position-limiting blocks positionedbetween said fixed shaft and the groove bottom of said secondaccommodating groove, said fixed shaft fitted thereon with a firstelastic member, said first elastic member having a fixed end resistingagainst said main body, said first elastic member having an elastic endpressing against said sheet body, said sheet body actuated to turnpivotally with said fixed shaft acting as an axis, said sheet bodyprovided with an interacting block respectively at said pivot jointportion, said interacting blocks inserted with said blade.
 4. Theadhesive tape dispenser as claimed in claim 3, wherein said pivot jointportion of said sheet body is two pivot joint blocks, said pivot jointblocks respectively formed with a pivot joint slot, said pivot jointslots pivotally connected with said fixed shaft, said interacting blocksrespectively disposed at the locations of said pivot joint blocks ofsaid sheet body, said adhesive tape dispenser provided with a blade boxin said first position-limiting groove, said blade box mounted with saidblade, said blade box bored with two first insert holes corresponding tosaid interacting blocks, said blade bored with two second insert holescorresponding to said interacting blocks, said interacting blocksorderly inserted in said first insert holes and said second insertholes, said sheet body actuated to move together with said blade caseand said blade.
 5. The adhesive tape dispenser as claimed in claim 4,wherein an external diameter of said fixed shaft is a little larger thanan opening width of said pivot joint slot.
 6. The adhesive tapedispenser as claimed in claim 1, wherein said tape holder is providedwith a first shaft lever and a second shaft lever, said tape holderprovided with a resisting block at a location adjacent to said firstshaft lever, said first shaft lever fitted thereon with a second elasticmember, said second elastic member having a fixed end resisting againstsaid main body, said second elastic member having an elastic end pushingagainst said resisting block, said second shaft lever fitted thereonwith said reel, said adhesive tape dispenser further containing a secondroller, said second roller pivotally set between said reel and saidfirst roller.
 7. The adhesive tape dispenser as claimed in claim 1,wherein said main body comprises a first cover and a second cover, saidfirst cover provided with a long arcuate second position-limiting blockfacing said second cover at a location adjacent to an intermediateportion of said first end and a second end, said secondposition-limiting block formed with a second position-limiting groove ata location facing said first end, said second position-limiting blockinserted with a positioning rod at one end near an upper side of saidmain body, said tape holder formed with a position-limiting sheetcorresponding to said second position-limiting groove at a locationadjacent to said second shaft lever, said position-limiting sheet cutwith a notch corresponding with said positioning rod, said notch able tobe engaged with said positioning rod for positioning said tape holder.8. The adhesive tape dispenser as claimed in claim 7, wherein said firstcover is disposed with at least one first round rod facing said secondcover at said second end, said first round rod bored with a first fixinghole, said second cover fixed with a second round rod corresponding withsaid first round rod at said second end, said second round rod boredwith a second fixing hole corresponding with said first fixing hole,said adhesive tape dispenser further comprising a holding portionsecured at said second end of said main body and positioned between saidfirst cover and said second cover, said holding portion containing agrip, said grip bored with a third insert hole corresponding to saidfirst round rod for said first round rod to be inserted therein, saidgrip bored with a fourth insert hole corresponding to said second roundrod for said second round rod to be inserted therein.
 9. The adhesivetape dispenser as claimed in claim 8, wherein said second round rod islarger than said first round rod in external diameter, and said secondround rod is provided with a recessed groove corresponding with saidfirst round rod to enable said second round rod to be fitted with saidfirst round rod.
 10. The adhesive tape dispenser as claimed in claim 8,wherein said grip is fitted thereon with an outer shell, said outershell different from said grip in material, said holding portion able topresent a bi-colored pattern.
 11. The adhesive tape dispenser as claimedin claim 1, wherein said electrostatic generating element is hair fiberof a certain length.
 12. The adhesive tape dispenser as claimed in claim1, wherein said electrostatic generating element is a Velcro.
 13. Theadhesive tape dispenser as claimed in claim 1, wherein saidelectrostatic bearing element is made of thermoplastic rubber.